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Surf Forecasts:
Porth Ceriad surfForecast / Wales – Lleyn / UK
48hr Weather and Surf, issued 5 am Wednesday 10 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Porth Ceriad surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Ceriad sea temperature is
10.0° C
(Which is slightly cooler than normal)How big are the waves at Porth Ceriad today?
The current surf forecast for Porth Ceriad at 10AM is: 3.0m 8s primary swell from a West-southwest direction (forecast issued at 05:00am December 10). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 10ft (3.0m) | 8s |
| Afternoon (10 Dec) | 7.5ft (2.3m) | 12s |
| Evening (10 Dec) | 7ft (2.1m) | 11s |
Table - waves today at Porth Ceriad. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 8 | 12 | 12 | 12 | 11 | 7 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 13 | 13 | 13 | 13 | 13 | 18 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3267 | 3217 | 1030 | 1744 | 1422 | 1256 | 1126 | 524 | 617 | 899 | 1010 | 1102 | 1092 | 1251 | 932 | 611 | 1170 | 863 | 820 | 946 | 981 | 2036 | 249 | 297 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 11:47AM 4.04 | 12:20AM 3.33 | 12:44PM 3.73 | 1:23AM 3.08 | 1:50PM 3.47 | |||||||||||||||||||
Low Tide / height (m) | 7:23PM 0.69 | 7:30AM 1.11 | 8:19PM 0.90 | 8:27AM 1.27 | 9:18PM 1.05 | |||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| Sunrise | - | - | 8:18 | - | - | - | - | - | - | - | 8:18 | - | - | - | - | - | - | - | 8:19 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:01 | - | - | - | - | - | - | - | 4:01 | - | - | - | - | - | - | - | 4:01 | - | - | - |
 |  |  |  |  |  |  | | | | | | | |  | |  | | | |  |  | | | |
Rain (mm) | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 7 | - | - | - | 1 | 1 | 1 | 1 |
| Temp. °C | 12 | 11 | 10 | 11 | 10 | 11 | 10 | 10 | 10 | 10 | 10 | 11 | 12 | 11 | 11 | 11 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 3 | 1 | 0 | 2 | 2 | 3 | 2 | 1 | 1 | 0 | 0 | 2 | 3 | 2 | 3 | 5 | 3 | 5 | 5 | 4 | 3 | 4 | 3 | 3 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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